Recent genetic evidence suggests that the Yellow-flanked Whistler actually should be considered a monotypic subfamily of the Bombycillidae.

Recent molecular analyses have corroborated their affinity and identified them as a clade, identifying the Yellow-flanked Whistler as another member.

The Hylocitrea (Hylocitrea bonensis), also known as the Yellow-flanked Whistler or Olive-flanked Whistler, is a species of bird that is endemic to montane forests on the Indonesian island of Sulawesi.

Although traditionally included in this family, recent genetic evidence suggests that the Yellow-flanked Whistler, also known as the Olive-flanked Whistler, actually should be placed in a monotypic subfamily of the family Bombycillidae.

The Hylocitrea (Hylocitrea bonensis), also known as the Yellow-flanked Whistler or Olive-flanked Whistler, is a species of bird that is endemic to montane forests on the Indonesian island of Sulawesi.